LEM has introduced the HAB xx-S family of current transducers for automotive battery-monitoring applications. These transducers have been designed to measure DC, AC, or pulsed currents up to ±100A. A new Application Specific Integrated Circuit (ASIC) incorporated into the units offers resolution 2.5 times better than previous models and a two-fold improvement in offset error, coupled with a significant reduction in price.
The transducers use open-loop, Hall-effect technology that simplifies both installation and servicing by removing the need to cut the [primary] cable carrying the measured current. They provide a pulse-width modulated (PWM) output signal proportional to the primary current being measured and operate from a unipolar 5V supply. Temperature measurement capability can be integrated with the addition of a fourth connection pin to the transducer package.
Output resolution of the HAB 60-S transducer is 0.03A with a linearity of 0.2%. Electric offset error is typically 0.075A across the temperature range from 10° to +65° C, and 0.15 A across the full range from 40° to +125° C.
A water-tight housing and sealed connector provide full environmental protection in engine-compartment applications.
Principal applications are expected to be in the measurement of battery-pack currents in electric, hybrid, and conventional vehicles. The transducers are fully certified to automotive standards.
LEM is a market leader in providing innovative and high quality solutions for measuring electrical parameters. Its core products current and voltage transducers are used in a broad range of applications in industrial, traction, energy, automation and automotive markets. LEM’s strategy is to exploit the intrinsic strengths of its core business, and develop opportunities in new markets with new applications. LEM is a mid-size, global company with approximately 950 employees worldwide. It has production plants in Geneva (Switzerland), Machida (Japan), Beijing (China), plus regional sales offices, and offers a seamless service worldwide. Further information is available at: www.lem.com
For further information please contact:
Corporate Communications Manager
Tel :+41 22 706 1257
Website : www.lem.com
Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.